Crushing and pulverizing machine



(No Model.) 3 Sheets-Shee t 1.

G. 'SIBLEY.

GRUSHING AND PULVEBIZING MACHINE. No. 275,719. Pate-ntedApri10,-1883 f Hk V// v/////// ////1 WITNESSES: X23 JgI ENTUR (NQModeli 3 S h e e t s Sh e e t 2.

G. SIBLEY.

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No, 275,719. I Patnted Apr.10,1883.

3 Sheets- 3' G. SIBLEY.-

GRUSHING AND PULVBRIZING MACHINE. 719. Patented Apr. 10,1883.

(N0 Md de'L WITNESSES" I INVENTOR 5% z) v I UNITED STATES PATENT OFFICE.

GrID EON SIBLEY, OF PHILADELPHIA, PENNSYLVANIA.

CRUSHING AND PULVERIZING MACHINE.

SPECIFICATION forming part of Letters Patent No. 275,719, dated April10, 1883.

Application filed February 17, 1883. (N0 model.)

To all whom it may concern Be it known that I, GIDEoN SIBLEY, a citizenof the United States, and a resident of Philadelphia, Pennsylvania,havein vented certain Improvements in Crushing and PulverizingMachines,of which the following is a specification.

My invention consists, mainly, of a crushing and triturating machine inwhich are combined an outer shell,a tapering burr having journalsadapted to fixed bearings, mechanism for-vibrating the burr or shell,and supporting devices interposed between the burr or shell and a fixedpart of the machine, and affording mediums by which the said vibratedportion of the machine is caused to rise and fall as it is vibrated, theobject being to obtain a better crushing and triturating effect than canbe produced by the conical burr and shell of an ordinary grinding-mill.

In the accompanying drawings, Figure 1, Sheet 1, is a vertical sectionof my improved crushing-machine; Fig. 2, a diagram illustrating amodified form ofthe shell and burr; Fig. 3, Sheet 2, a sectional plan onthe line 1 2, Fig. 1 Fig 4., a sectional plan on the line- 3 4, Fig.1;Fig. 5, Sheet 3, a general plan view, and Figs. 6 and 7 diagramsillustrating the operation of the crushing-machine.

To a suitable foundation-plate, A, are secured the lower ends of fourthreaded pillars, a, which are connected together at the top by thecross-piece B, by the shell 0, and by the cross-piece D below the shell,these several parts having lugs or projections b, through which thepillars pass, and which are adjustably confined thereto by nuts d.

The upper journal, f, of the triturating-burr E has its bearing in thecross-piece-B, and the lower journal, h, has its bearing in thecrosspiece D, an arm, F, being secured to an extension of this journal,and this arm being connected by a universal joint, z, to one end of arod, G, the opposite end of which is connected to the pin it of a crankor crank-wheel, m, on a shaft, H, which has its hearings on a frame, I,secured to the foundation-plate A, the shaft being provided with adriving-pulley to receive a belt from a pulley on any neighboring shaft;or the shaft B may be driven through the medium of any appropriategearing. When the said shaft H is rotated, a vibrating motion will beimparted to the arm F and to the burr E. This burr is supported on anumber of pins, or, the lower rounded ends of which bear in concavesockets in the cross piece D, the upper rounded ends being contained insimilar sockets in the under side of the burr. When the burr is at ornear the limit of its movement in one direction, the pins 00 will bevertical, as shown in the diagram Fig. 7, and the burr will be at itsgreatest altitude; but when the burr is moved in the direction of thearrow it will gradually descend as the pins gradually approach theinclined position shown in the diagram Fig. 6; hence as the burr isvibrated it must necessarily rise and fall.

The dress of the burr and shell may be varied in accordance with thecharacter of the material to be crushed and triturated; but for hardminerals I prefer to cast on the burr alternate long and short inclinedribs 1) and g, which terminate at the bottom in the plain annulargrinding or pulverizing surface 6, the shell being provided with similarribs, which also terminate below in a plain annular grinding-surfacecorresponding and acting in conjunction with that of the burr, for thefine pulverizing of the mineral which has been crushed into fragments bythe combined action of the ribs of the burr and shell. The best grindingand crushing effect will be produced when the burr is moving in thedirection of the arrow, Fig. 1; hence I so arrange the pins as that theburr will rise during this movement, the burr descending when it movesin a contrary direction, and thereby permitting the fragments to fallbetween the shell and burr to a limited extent preparatory to themovement of the burr again in the direction of the arrow, and to therising of the burr during this movement with the best crushing andgrinding eifect 0n the fragments which had descended between the shelland burr.

In Fig. l the burr is made in the form of a frustum of a cone, the shellbeing so shaped that there shall be a space gradually diminishing inwidth from the top to the bottom between the shell and burr, for thefree admission between them of the material introduced into the hoppery, and for the free descent of the fragments as they are graduallyreduced in size. Both the burr and interior of the shell, however, maybe curved at and near their lower end, as shown in the diagram Fig. 2,and in some cases the burr may be fixed and the shell may he vibratedand supported upon pins :10, the construction shown however, beingpreferred.

Instead of using plus it, as described, to cause a rising and fallingmovement of the vibrating portion of the mill, other devices having thesame effect may be employed. For instance, rollers on the burr or shellmay be adapted to inclined planes on the bed, or the planes may beformed on the burr or shell and the rollers carried by the bed.

I claim as my invention 1. The combination of the burr and shell, one ofwhich is free to vibrate, with mechanism for vibrating the same, andwith supporting devices, substantially as described, whereby it iscaused to rise and fall as it is vibrated, as set forth.

2. A crushing or triturating machine in which are combined the followinginstrumentalities, namely: first, a fixed shell; second, a tapering burrhaving journals adapted to and free to slide in fixed bearings; third,mechanism for vibrating the burr; and, fourth, supporting devices,substantially as described, whereby the burr is caused to rise and fallas it is vibrated, all substantially as set forth.

3. The combination of pillars a, the crosspieces B and D, and shell 0,and the burr 1G, havingjournals adapted to hearings in the saidcross-pieces, with devices, substantially as described, for'vibratingand imparting a rising and falling movement to the burr, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GIDEON SIBLEY.

Witnesses:

HARRY DRURY, HARRY SMITH.

